14 13 12 11 10
2
4
6
8
9
7
5
3
1
CN309
STEPC
FILTER
CAP
VCC
HPFL1
HPFL2
HPFL3
HPFR1
HPFR2
HPFR3
BASS1
BASS2
BASS3
BASS4
BASS5
OUTL
OUTR
F5R
32
33
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Q306
Q306
KRA102STA
C363
100P
C364
C356
0.27
C327
680P
C337
1000P
C319
0.01
C330
47P
C329
100P
C321
0.01
C320
0.01
C430
47P
C318
0.01
C426
0.068
C227
680P
C230
47P
C229
100P
C351
0.22
C352
0.22
C350
0.1
C349
0.1
C429
100P
C427
680P
C226
0.068
C353
0.1
C348
C347
0.1
C346
0.068
C345
0.1
C344
0.1
C343
0.068
C342
2200P
C365
0.47
C317
50V4.7
C431
16V10
C355 16V10
C362
50V2.2
C332
50V3.3
C231
16V10
C328
16V10
C428
16V10
C228
16V10
C354 10V220
R328
33K
R329
47K
R373
15K
R379
4.7K
R327
1.8K
R323
47K
R227
3.3K
R326
100
R325
15K
R324
1.5K
R427
3.3K
R422
4.7K
R223
47K
R225
3.3K
R224
15K
R383 3.9K
R376
15K
R377
18K
R385
100K
R423
47K
R424
15K
R425
3.3K
R375
8.2K
R382
47K
R381
47K
R384
47K
R374
8.2K
R378
47K
R358
47K
R359
47K
R346
22K
R354
12K
R347 12K
R355
22K
R353
10K
R351
10K
R345
220
R222
4.7K
Q200
KTD1304TA
MUTING SWITCH
HIGH-CHANNEL RCH
5
6
7
8
3
4
2
1
IC304
5
6
7
8
3
4
2
1
IC302
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
2
4
6
8
9
7
5
3
1
MUTEA
PCONT
NAS_A
NAS_B
LED9V
+9.0V
SW2
SW1
-VP
DET_OUT
ASP_DA
T
A
ASP_CLK
ASP_LA
TCH
SW5V
CHG_AD1
CHG_AD2
CHG_CW
CHG_CCW
SPEANA
ST_DO
SD
HPR
HPL
ASP_LA
TCH
ASP_DA
T
A
SW5V
+9.0V
VREF+
VREF+
SW2
SW1
CHG_CW
CHG_HALF
CHG_CCW
CHG_AD1
VREF+
SW5V
CHG_AD2
DGND
BOTT
OMSW
PLUNGER
POSITION
5V
DGND
SW2
PGND
SW1
OPEN
CLAMP
CHG_CCW
8V
CHG_HALF
CHG_CW
TO
CD LOADING CIRCUIT
(CN1) ON SCHEMATIC
DIAGRAM-12
TO
PANEL CIRCUIT
(CP607) ON SCHEMATIC
DIAGRAM-8
CN302
-9.0V
R341
4.7K
R342
10K
Q309
R356
1K
C366
16V10
R360
100K
D319
MA728TX
Q309
KTA1504GRTA
SWITCH
R343
10K
Q310
R357
1K
C367
16V10
R361
100K
D320
MA728TX
Q310
KTA1504GRTA
SWITCH
R344
2.2K
R348
18K
+9.0V
R320
100K
R321
1.5K
C325
50V3.3
Q300
R421
1.5K
R221
1.5K
C425
50V3.3
R433
3.3K
Q400
Q200
R420
100K
C438
16V47
C437
1000P
R220
100K
C225
50V3.3
R233
3.3K
C237
1000P
C238
16V47
R426
1.5K
R226
1.5K
Q450
Q250
R249
82
R248
82
R250
82
R251
82
C232
3300P
C432
3300P
R449
82
R448
82
R450
82
R451
82
0.1
100P
<4.52V>(4.52V)
((4.52V))4.52V
<4.52V>(4.52V)
((4.52V))4.52V
<4.52V>(4.51V)
((4.52V))4.51V
<4.52V>(4.53V)
((4.52V))4.53V
<4.52V>(4.52V)
((4.52V))4.52V
<4.51V>(4.51V)
((4.50V))4.51V
<4.52V>(4.53V)
((4.52V))4.52V
<4.52V>(4.53V)
((4.52V))4.52V
<4.51V>(4.52V)
((4.51V))4.51V
<4.53V>(4.51V)
((4.54V))4.54V
<4.5V>(4.49V)
((4.49V))4.49V
<4.53V>(4.52V)
((4.53V))4.53V
<4.52V>(4.52V)
((4.52V))4.52V
<4.52V>(4.52V)
((4.50V))4.51V
<9.05V>(9.04V)
((9.04V))9.04V
<4.53V>(4.53V)
((4.53V))4.53V
<4.53V>(4.53V)
((4.53V))4.53V
<0.07V>(0.07V)
((0.07V))0.07V
<0V>(0V)
((0V))0V
<0V>(0V)
((0V))0V
<0V>(0V)
((0V))0V
<-9.1
1V>(-9.1
1V)
((-9.1
1V))-9.1
1V
<9.04V>(9.04V)
((9.04V))9.04V
<0V>(0V)
((0V))0V
<0V>(0V)
((0V))0V
<0V>(0V)
((0V))0V
<0V>(0V)
((0V))0V
<0V>(0V)
((0V))0V
<0V>(0V)
((0V))0V
<-9.11V>(-9.11V)
((-9.11V))-9.11V
<9.04V>
(9.04V)
((9.04V))
9.04V
<8.55V>
(8.58V)
((8.58V))
8.59V
<8.55V>
(8.58V)
((8.58V))
8.59V
<0.71V>
(0.7V)
((0.7V))
0.71V
Q300
KTD1304TA
MUTING SWITCH
LOW-CHANNEL
Q400
KTD1304TA
MUTING SWITCH
HICH-CHANNEL LCH
R380
1K
C375
1000P
C374
1000P
R337
0
SCHEMATIC DIAGRAM - 5
: MAIN SIGNAL LINE
: +B SIGNAL LINE
: -B SIGNAL LINE
Q250
(0V) <0V>
0V ((0V))
[0V]
(0V) <0V>
0V ((0V))
[0V]
(-1.93V) <-1.79V>
-1.86V ((-1.91V))
[-1.79V]
(0V) <0V>
0V ((0V))
[0V]
(0V) <0V>
0V ((0V))
[0V]
(0V) <0V>
0V ((0V))
[0V]
(0V)<0V>
0V((0V))
[0V]
(0V)<0V>
0V((0V))
[0V]
(-3.76V)<-3.76V>
-3.76V((-3.76V))[-3.76V]
(0V)<0V>
0V ((0V))[0V]
(0V)<0V>
0V((0V))[0V]
(-3.76V)<-3.76V>
-3.76V((-3.76V))[-3.76V]
(0V)<0V>
0V((0V))[0V]
(0V)<0V>
0V((0V))[0V]
(-3.77V)<-3.77V>
-3.77V((-3.77V))[-3.77V]
(-3.76V)<-3.76V>
-3.76V((-3.76V))
[-3.76V]
(-0.39V)<-0.39V>
-0.39V((-0.4V))
[-0.39V]
(0V)<0V>
0V((0V))
[0V]
(0V)<0V>0V
((0V))[0V]
(0V)<0V>
0V((0V))
[0V]
(-3.76V)<-3.76V>
-3.76V((-3.76V))[-3.76V]
(0V)<0V>0V
((0V))[0V]
Q450
(0V)<0V>0V
((0V))[0V]
(-3.76V)<-3.76V>
-3.76V((-3.76V))[-3.76V]